ES63803A1 - An automatic switching device for a thermotelephone. - Google Patents

An automatic switching device for a thermotelephone.

Info

Publication number
ES63803A1
ES63803A1 ES63803A ES63803A ES63803A1 ES 63803 A1 ES63803 A1 ES 63803A1 ES 63803 A ES63803 A ES 63803A ES 63803 A ES63803 A ES 63803A ES 63803 A1 ES63803 A1 ES 63803A1
Authority
ES
Spain
Prior art keywords
thermotelephone
switching device
automatic switching
automatic
switching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES63803A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
N V De Nederlandsche Thermo Telephoon Mij
Original Assignee
N V De Nederlandsche Thermo Telephoon Mij
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by N V De Nederlandsche Thermo Telephoon Mij filed Critical N V De Nederlandsche Thermo Telephoon Mij
Priority to ES63803A priority Critical patent/ES63803A1/en
Publication of ES63803A1 publication Critical patent/ES63803A1/en
Expired legal-status Critical Current

Links

ES63803A 1917-01-30 1917-01-30 An automatic switching device for a thermotelephone. Expired ES63803A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES63803A ES63803A1 (en) 1917-01-30 1917-01-30 An automatic switching device for a thermotelephone.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES63803A ES63803A1 (en) 1917-01-30 1917-01-30 An automatic switching device for a thermotelephone.

Publications (1)

Publication Number Publication Date
ES63803A1 true ES63803A1 (en) 1917-03-01

Family

ID=64236757

Family Applications (1)

Application Number Title Priority Date Filing Date
ES63803A Expired ES63803A1 (en) 1917-01-30 1917-01-30 An automatic switching device for a thermotelephone.

Country Status (1)

Country Link
ES (1) ES63803A1 (en)

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